If you want to serve God, prepare your heart not for food, not for drink, not for rest, not for ease, but for suffering, so that you may endure all temptations, trouble and sorrow. Prepare for severities, fasts, spiritual struggles and many afflictions, for “by many afflictions is it appointed to us to enter the Kingdom of Heaven” (Acts 14,22); “The Heavenly Kingdom is taken by force, and the who use force seize it“. (MattĀ 11:12)
— Saint Sergius of Radonezh (1314-1392)